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Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2016
Summary of RSUs

A summary of the RSUs for the year ended December 31, 2016 is as follows:

 

 

 

Restricted Share Awards

 

 

 

Performance

 

 

 

 

 

 

Total

 

 

Weighted-Average

 

 

 

and Service

 

 

Service

 

 

Restricted

 

 

Grant-Date

 

 

 

Required

 

 

Required

 

 

Awards

 

 

Fair Value

 

Nonvested as of January 1, 2016

 

 

91,603

 

 

 

10,872

 

 

 

102,475

 

 

$

53.88

 

Granted

 

 

79,241

 

 

 

9,901

 

 

 

89,142

 

 

 

33.73

 

Vested

 

0

 

 

 

(4,799

)

 

 

(4,799

)

 

 

63.95

 

Forfeited

 

 

(40,676

)

 

0

 

 

 

(40,676

)

 

 

63.95

 

Nonvested as of December 31, 2016

 

 

130,168

 

 

 

15,974

 

 

 

146,142

 

 

$

38.46

 

 

Weighted-Average Assumptions for Estimating Fair Values

The fair values for the stock options granted were estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

 

 

2016

 

2015

 

 

2014

 

Risk-free interest rate

N/A

 

 

2.1

%

 

 

1.9

%

Dividend yield

N/A

 

 

1.6

%

 

 

1.7

%

Expected life (years)

N/A

 

5

 

 

5

 

Expected volatility

N/A

 

 

37.9

%

 

 

42.9

%

 

Long Term Incentive Plan [Member]  
Activity in Company's Plan

Activity in the Company’s LTIP for the year ended December 31, 2016 was as follows:

 

 

 

Number of

Shares

 

 

Weighted

Average

Exercise Price

per Share

 

 

Weighted

Average

Remaining Contractual

Term (Years)

 

 

Aggregate

Intrinsic

Value

 

Outstanding at January 1, 2016

 

 

56,250

 

 

$

55.30

 

 

 

 

 

 

 

 

 

Granted

 

0

 

 

0

 

 

 

 

 

 

 

 

 

Exercised

 

 

(500

)

 

$

37.4

 

 

 

 

 

 

 

 

 

Forfeited

 

 

(3,000

)

 

$

71.62

 

 

 

 

 

 

 

 

 

Outstanding (vested and expected to vest) at

   December 31, 2016

 

 

52,750

 

 

$

54.54

 

 

 

5.8

 

 

$

17

 

Exercisable at December 31, 2016

 

 

39,875

 

 

$

55.42

 

 

 

7.0

 

 

$

19

 

 

Stock Options [Member]  
Activity in Company's Plan

Activity in the Company’s 1999 Stock Option Plan for the year ended December 31, 2016 was as follows:

 

 

 

Number of

Shares

 

 

Weighted

Average

Exercise Price

per Share

 

 

Weighted

Average

Remaining Contractual

Term (Years)

 

 

Aggregate

Intrinsic

Value

 

Outstanding at January 1, 2016

 

 

12,000

 

 

$

41.44

 

 

 

 

 

 

 

 

 

Exercised

 

 

(6,450

)

 

$

35.50

 

 

 

 

 

 

 

 

 

Forfeited

 

0

 

 

$

0.00

 

 

 

 

 

 

 

 

 

Outstanding (exercisable and vested) at December 31, 2016

 

 

5,550

 

 

$

48.35

 

 

 

1.8

 

 

$

54